WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / T / tighten up tighten up verb 10 letters Scrabble 15 WWF 18 Definitions verb severely restrict in scope or extent constrainstiffentighten Look “tighten up” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →